Upgrading OpenWrt

If you have already installed OpenWrt and like to reflash for e.g. upgrading to a new OpenWrt version you can upgrade using the sysupgrade command line tool. It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

7. Signal LEDs might be blinking during the upgrade. On a PicoStation2, the power lights go back and forth.
7. Wait ~7 minutes before restarting or until the power lights stop their back and forth blinking.
7. Restart. The device should be back to its old configuration (OpenWrt doesn't overwrite or modify the NVRAM settings).

8. telnet to 192.168.1.1 and set a password with

passwd

Restore Original AirOS firmware on Nanostation

To restore original firmware back you can't use mtd or sysupgrade but you have to use tftp method.

First put Nanostation in recovery mode via reset button on power on, and then flash original flash image via tftp.